Fountain-pen



(No. Model.) N P.. E. WIRT.

FOUNTAIN PEN. N No. 526,425. Patented Sept.-25, )1894.

UNITED STATES i PATENT (OFFICE.

PAUL-E. WIRT, OF BLOOMSBURG, PENNSYLVANIA.

Fo'uNTAiN-PEN.

SPECIFICATION forming part of Letters Pateht No. 526,425, dated September 25,1894. Application ined August ze, 189s. staal 110.484,106. (Numtel.)

.To aZZ whom it' may concern: y f

Be it known that I, PAUL E. WIRT, of Bloomsburg, county of Columbia, and State of Pennsylvania, have inventeda new and useful Improvementin Fountain-Pens, of which the following is a specification.

In the use of fountain pens much trouble and annoyanceare caused by reason of the ink leaking and running from the pen when it is carried in thepocket in van inverted position. It is also found that the pen will become dry when not in use on account of `the evaporation of ink from its point, so that when an attempt is made to write, some little time will elapse before the ink will again flow to the pen, its dry `condition preventing the immediate supply of ink. To overcome these objectionable features and others which have developed in practice, is the aim of my invention, which consists primarily in so con` structing the-reservoir and pen point that when not in use the latter will beA contained within the reservoir surrounded by the ink, and may be moved therefrom to an operative position when the pen is to be used, the point in this way being kept moist and supplied with ink so that when applied to the paper, ink will be supplied at once and writing permitted without delay.` y

The invention also consists in providing for the effectual sealing of the forward end of the reservoir when the pen is not in use so that in the event of its being carried in yan inverted position there will be no liability of the ink leaking therefrom.

The invention alsoconsists in the details of construction and combination of parts hereinafter described and' claimed.

In the accompanying drawings-Figure l is a longitudinal section through a fountain pen embodying my invention, the parts being in the position occupied when the pen is not in use. Fig. 2 is a similar view showing the parts in the position they will occupy when the pen is in use. Fig. 3 is a cross section on the line 3-3 of Fig. 1. Fig. 4 is a lon-I gitudinal section through the pen point and the adjacent parts. Fig. 5 is a view of a modification.

Referring to the drawings-A represents a tube, which may be made of hard rubber or berance on this plug isV provided t tral opening communicating other appropriate material, and constituting ure. This plug is provided with a central longitudinal opening to receive the conductor (l, and at opposite sidesof the opening are formed downwardly curved slots communieating with the opening and adaptedto reuceive theedges of the pen Atherein beneath the conductor. When it ductor is depressed or bent downward andexwhich is held passes through the plug the-contends forward beyond and overlies the point `of the pen in the l, ner. From the rearendlof the plug the conusual and customary manductor is extended upward and then rearward `therein so that it may be removed at pleaswithin the reservoir adjacent toits side, so .i

`that when the plug isin position in the reservoir, a slight space will be left betweenthe conductor and the side of the reservoir, which A space acts by capillary attraction to facilitate the flow of ink to the pen. The location of the reservoir is the conductor at the side of of advantage also when it is desired to replenish the ink, for the reason that a comparatively unobstructed space is left for the entrance of ink. At its rear end the conductor proper is enlarged and elastic tube E. The rear end of this tube fits `tightly over a protuberance e formed on an eXteriorly threadedplug F which is screwed into the rear end of the reservoir as shown.

`The end` of this plug beyond the `reservoir is hollow forming a chamber e. The pretuwith a eenwith a passage through which passage extends arod G, which at its forward end to the rear through the threaded plug, opening and is connected n ts within the 9o `forward end of a rubber or other expansible IOO its rear end and the exterior.

noted that when the pen is to be filled it is' 4tion the rod will terminate a short distance from the end of the chamber e', as shown in Fig. l. When the parts are in this position, the plug carrying the forward end of the conductor and the pen will be Withdrawn from the contracted end of the reservoir and the pen will be located within the same surrounded by ink. When it is desired, there fore, to use the pen,.the rod is pushed forward which action will cause the rubber'tube to be stretched, the plug to be seated within the forward end of the reservoir andthe pen to be projected beyond the same to'an operative position.

In order that the forward end of the reservoir may be efl'ectually sealed to prevent the leakage of ink therefrom, I provide a cap H. This cap is formed with an interior thread adapted to engage an exterior thread adjacent to the end of the reservoir, and is further provided with a flat raised surface h', adapted when the cap is in place to fit'over the extreme forward end of the reservoir. This cap is so formed that an annular space or chamber extends around the raised surface, thus separating it from the interior sides of the cap. As a result of this construction any ink remaining on the raised portion will be prevented from passing to the interior of the cap,

thence outside of the reservoir and soilingf the fingers. On its end the cap is formed-with' a cylindrical projection h2 of adiameter-corresponding to the interior diameter of chamber e in the plug F. This projection is adapted to enter snugly within the chamber when the pen is to be used, the result being that the rod is pushed before theprojection and the pen is projected to an operative position.

It is to be noted that when not in use thel cap effectually closes the forward end ofthe reservoir so that there will be no liability of the ink escaping therefrom in the event of the'pen being held in an inverted position and also that there can be no escape of the ink from the lower end of the reservoir as the ends of the tube are cemented to the'rear end of the conductor and the protuberance onthe stopper respectively, there being thus no communication between the reservoir and It is also to be but necessary to remove the cap and introduce the ink within the front of the reservoir, thus avoiding the difficulty of unscrew` ing the pen point which is necessary in pens as heretofore constructed.

In Fig. 5, I have represented a modification of my invention. In this figurev it will be seen that instead of connecting the rear end of the` conductor to the elastic tube,l it is separated therefrom, the tube having its end tted over a knob e2 formed on a disk es;

yFrom this it will bel and surrounding l `and the rod having its forward end connected Vand the rear end of the conductor terminatinginadvance of the disk. As a result of this arrangement the pen and its conductor may be removed bodily from the forward end of the reservoir, so that it may be readily cleanedor refilled-as desired. In this form the elastic tube will not, like in the first instance, return the peu within the reservoir in the removal of the cap from the chamber at its rear end, but the return of the pen is effected bythe pressure of the raised surface -h againstthe point of the pen when the cap is placed over the front end of the reservoir. Having thus described my invention, what I claim is l. The combination with the reservoiropen f at its two ends, a longitudinally movable pen and conductor, an extensible tube locatedwithin the reservoir with its rear end surrounding the opening'in the rear endof the reservoir, and its front end closed, and means for extending said tube to project the'conductor and pen forward for use.

2. The combination of the reservoir open' at its two ends, a longitudinally movable pen and conductor, an extensible tube located withinvthe reservoir with its front end closedv and its rear end surrounding the opening in the endof the reservoir, and the rod for extending! the tube, said rod located within the" tube with its rear end exposed.

3. The combination of the reservoir open at its two ends, a longitudinally movablepen 'and conductor therein,and aprojectingmechanism for moving the pen forward for use, said mechanism comprising an extensiblev tube located within the reservoir with its lfront endclosed and its rear end surrounding the opening in the rear end of the reservoir, and means for extending the tube within the reservoir.

4. In a fountain pen, the combination of the reservoir, the pen, the rearwardly-extending vconductor attached thereto, the stopper at the rear end of the reservoir provided with an opening, the elastic tube connected at its ends respectively to the conductor and the stopper the opening in the latter,

to the rear end of the conductor and extending through the tube and stopper tothe exterior.

5. In a fountain pen,the combination with then rearwardly within thereservoir.

, 6. The combination of the reservoiropen at` its two ends, the longitudinally movable pen;` and conductor, an extensible tube locatedt within the reservoir with its front end closed and connectedtothe conductor, and its rear end surrounding the opening in the reservoir, and a rod located Within the tube and having its forward end connected to the conductor and rear end exposed.

'7. The combination with the reservoir open at its forward end, of the movable pen adapted when not in use to be located Within the reservoir, the plug closing the rear end of the reservoir and formed with a chamber at its rear end, mechanism extending through the plug for projecting the pen beyond the reservoir, and a cap for closing the forward end of the reservoir, said cap provided with a proj ection adapted to enter the chamber in rear of the stopper.

8. The combination of the reservoir open at its forward end, the movable peu adapted when not in use to be located Within the reservoir, the rearwardlyextending conductor connected with the pen, the stopper located Within the rear end of the reservoir and formed at its end with a chamber, mechanism extending through the stopperfor projecting the pen forward, means for automatically returning the pen within the reservoir, and a cap for closing the forward end of the reservoir, said cap provided with a projectionV adapted to enter the chamber in the stopper.

9. In a fountain pen the combination of the reservoir open at its forward end, the movable pen adapted when not in use to be located within the reservoir, and the cap adapted to t over the open forward end thereof and proabut against and close the end of the reservoir. i

11. ln a fountain pen the combination with the reservoir reduced in internal diameter at its forward end, of the longitudinally movablel plug adapted when the pen is to be used to tit within the reduced eud'of the reservoir and the pen and conductor carried by said plug said parts adapted to be located within the reservoir when the pen is not in use; whereby the ink will have free access to the pen and keep the same moist when located in the reservoir.

ln testimony whereof VI hereunto set my hand, this 25th day of July, 1893, in the presence of two attesting witnesses.

PAUL E. WIRT.

i Witnesses:

Unas. H. ALBERT, S. F. PEACOCK. 

